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Start computer finished!There are three kinds of factory modes: simple factory mode, factory method mode and abstract factory mode. All three solve one problem, that is, the creation of objects. Their duty is to separate the creation of objects from the use of objects.　　咱们这出身专业的老丈人很“偶然”地发现Focker先生包中的小药盒后，自然展开了丰富到极致的想象，正当Focker先生忙于应付之际，Focker太太英俊风趣的前男友又出现搅乱，本来平静的生活立马开锅......云姨，她这是跟我们显摆哩。Women: 500m, 3000 m relay;The message was gray. I tried on two pairs of shoes. The colors matched well and were not abrupt at all.We know that computers can be used for work, study, entertainment, etc. In addition to the necessary computer hardware, software is also needed. Usually, we call a computer with only hardware but no software "bare metal", which cannot do any meaningful work. At present, software can be divided into two categories according to its use: system software and application software. System software is a program designed for computer systems to efficiently use and manage computer software and hardware resources and support the operation of application software. Such as operating systems, programming languages and language processing programs, network system software, system service programs, etc. Among them, Windows operating system is what we often use. Application software is a variety of programs that are user-oriented and written to solve practical problems. It can be written by users themselves or purchased. For example, office XP, Photoshop, Red Alert and so on, which we often use.